Auguste uosbaume



(No Model.) 7 I A. NQSB-AUME. AIR COMPRESSOR ANDRBGULATOR THEREFOR.

Patented Nov. V20, 1888.

I Nrrn STATES LATENT AUGUSTE NOSBAUME, OF ANTWERP, BELGIUM.

SPECIFICATION forming part of Letters Patent No. 393,172, dated November 20, 1888.

Application filed November 28, 1887. Serial No.'256,-279.

To all whom it may concern.-

Be it known that I, AUGUSTE NOSBAUME,Of Antwerp, in the Kingdom of Belgium, have invented new and useful Improvements in Elevators for Grain, for which no patent hasbeen obtained in any country, and of which the following is a specification.

This invention has for its object an air-compressor and pressure-regulator therefor for use in connection with grain-elevators or other devices where forced air is used.

Referring to the accompanying drawings, which form an important part of this application, Figure 1 is a cross-section of the airreservoir and pressure-regulator shown in connection,with a pneumatic elevator-tube. Fig. 2 is a front elevation of the air-reservoir and pressureregulator. Fig. 3 is an elevation of the same from behind. Fig. 4. is an elevation of the exhauster of the elevator. Fig. 5 is a longitudinal section of the same, also showing the elevatortube.

Q is a reservoir partly filled with water, from which a pipe, J, communicates with the atmosphere. The inner end of this pipe J is upturned and provided with an upwardlyopening or gravity valve, J, and the outer end is bent vertically and tapers gradually until it reaches the conical injector formed thereon, which latter has at its upper extremity an aperture,0, for theaspiration of air produced by the jet of steam forced through pipe Kinto the tuyere N,which projects through the side of the injector I and has its nozzle bent down wardly and situated at the tapered mouth of the pipe J.

At the upper part of the reservoir Q an opening, Q", is provided for the passage of air from the waterreservoir Q to the air-reservoir L, 'via the space or chamber Q partly surrounding the chamber Q. At the bottom of this chamber L is a recess, S, to collect the water that may have been carried away with the air, and a plug or cock, T, inserted at the bottom of this recess permits the said water being expelled, if necessary.

The under part of the reservoir Q is provided with a downwardly-projecting pipe, 20, which also projects through the lower wall of the chamber Q and is connected with any suitable form of injector,V, and with a threeway cock,W. This latter serves to empty the (N0 model.)

water-reservoir through its branch to, and the injectorV serves to fill it up again by drawing water through the pipe w by means of the current of compressed air drawn from the space or chamber Q through the air-inlet tube F.

At the upper part of the reservoir L is the pressure-regulator, having for its object to distribute at a lower pressure a given quantity of air contained in the reservor L under a higher pressure according to requirement or at the attendants pleasure. This regulator is com posed of a cylindrical body having therein between its upper and lower ends, A B, respectively,'a piston, P, having, preferably, a tight joint, which piston moves freely inside the cylinder, and the lower end of its rod projects through an opening or passage in a lid, M, upon which the lower end, B, of the cylinder rests, into a box or chamber formed on the under side of said lid, and carries a valve, D, the movement of which is limited above by the valve-seat Mand below by the internal flange, H, on the lower rim of said box. This valve establishes and intercepts the communication between the pressure-regulator and the airreservoir through the openings in the lid M and lower end of the valve-box. The upper end, A, of the pressure-regulator communicates with the reservoir L through a passage formed by a pipe, H, which is secured by a coupling, E, to the three-way cock It, having.

one of its Ways secured to the regulator and its other communicating with the atmosphere. In order to render absolutely tight the joint of piston P, I provide a funnel, G, which communicates with the upper end, A, of the regulator through a plug, R, whereby a small quantity of water may be introduced into the cylinder at its upper end above the piston. A manometer, M, secured in the crown of the pressure-regulator, indicates the pressure of the water above the piston.

On each side of the lower end, B, of the pressure-regulator is a cock, R, which is shown in the present instance connected by means of india-rubber or other flexible pipes, H, and flush-joints E with the elevator-tube. As shown in Figs. 4 and 5, the elevator is composed of pipe cl, at the lower end of which is fixed an injector composed of a conical tube, y, in the tapered end of which projects the exvator.

tremity of a tuyere, 2, connected to a pipe, 11', through which the air from the lower part, B, of the pressure-regulator is admitted to the ele- The lower end of this tube y is provided with aflange and the upper end of the pipe h is also provided with a flange, which flanges are connected together by vertical bolts or rods 0 whereby lateral openings a are formed for the introduction of the grain or other substances to be elevated, the lower end of the pipe I) being open, as shown.

The operation of this apparatus is as follows: The air inspired by the steam-injector N is drawn in the reservoir Q, the steam is condensed in the water contained in said reservoir, and the air is more and more compressed in the open space of said reservoir. When the pressure is insufficient, the cock R is opened until the required pressure is obtained above the piston in the upper end, A,of the pressure-regulator,which pressure is indicated by the manometer M. At this moment the cock R is turned oft-and cock Ris turned on. Under the pressure above the piston P the latter is lowered, which action unseats the valve D and permits the air contained in reservoir L to rush into the lower end,B, of the cylinder and to be evacuated through pipes H toward the elevator or other device with which said pipes communicate; but in entering the lower end, B, of the cylinder the air from chamber L (the pressure of which is higher than that at A) pushes back the piston 1, closing the valve D until a relative equilibrium is obtained between the two pressures, and therefore the pressure at the side B is lowered equal to that indicated by the manometer M.

It will be understood that the air .passing through the injector y draws into the pipe d the grain or other granulated substance and drives it up the pipe d to its place of dischargement.

I have shown my apparatus in connection with a pneumatic elevator-tube; but it will of course be understood that the same could readily be applied to any apparatus where a current of air is required.

' Having thus described myinvention, the following is What I claim as new therein and do sire to secure by Letters Patent:

1. The combination, with the air-compressor, of a piston, a valve for regulating the exit from said compressor connected to said piston and adapted to be held'seated by the pressure from said compressor, and a pipe leading around said valve and communicating with said compressor for admitting pressure to said piston and unseating said valve, as set forth.

2. The combination,with the cylinder, of the chamber L, having two passages communicating with said ey1inder,a valve for closing one of said passages, and a piston connected to said valve, said valve and piston being interposed between the inlets of said passages, substantially as and for the purposes set forth.

3. The combination, with the reservoir L, having a cylinder in communication therewith, ofa valve adapted to close said communication by virtue of the pressure in said reservoir,a valve-stem, a piston of larger area than said valve on said stem in said cylinder,an exitpipe connected with said cylinder between the valve and piston, and an inlet-pipe connected with said cylinder on the opposite side I of the piston, as set forth.

4. The combination, with the condensingchamber Q and the reservoir L, having communication therewith, of pipe J, extending into said chamber and having its ends upturned, and a valve at its inner and an injector at its outer end, substantially as set forth.

5. The combination, with the condensing chamber Q, the reservoir L, and the chamber Q, connecting chamber Q and reservoir L, of the pipe J,extending into chamber Q,and having its inner end upturned, a gravity-valve at the inner and an injector-nozzle at the outer endof said pipe, a water-supply pipe connected with the chamber Q, and the pipe F, communicating with chamber Q and said water-pipe for admitting pressure to the latter, substantially as and for the purpose set forth.

, AUGUSTE NOSBAUME.

\Vitnesses:

- EMILE PIOARD,

Ziic. STENE. 

